Transaction waiting period

i serviced my car at the nearest rmi service place when i made payment with my card via card machine, i had a network error , the service station manager said the payment did not complete and i must go to my bank to find out what happened,i went to the bank and have told them about this because the money isnt reflecting in either of our accounts, i was told to wait 7-14 days and someone will call me with in incident number. it is really pathetic that this couldnt be solved immediately, i still owe the service station manager.it never went off. Just give me my money back so i can pay the manager and be done with this.